Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
Still not sure? Call (818) 818-6559 and we'll find it for you.
OEM Jandy Bypass Assembly R0453700 is a key hydraulic component engineered to maintain safe and efficient operation in Jandy LXi pool and spa heaters. This assembly regulates internal water flow, ensuring optimal circulation across the heat exchanger while protecting the system from pressure buildup and thermal damage. It includes the bypass valve, O-rings, and locking ring needed for a complete installation. As a genuine Jandy part, it delivers dependable performance, simplifies maintenance, and helps extend the lifespan of your heater.
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Controls Internal Water Circulation: Regulates flow through the heat exchanger, promoting efficient heating and preventing over-pressurization
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Includes Complete Assembly Hardware: Comes with O-rings, locking ring, and bypass valve for a comprehensive solution and secure installation
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Specifically Designed for LXi Models: Compatible with all Jandy LXi heater models, offering a precise fit and restoring factory flow settings
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OEM-Verified for Long-Term Reliability: Built using high-quality materials and tested to Jandy’s standards for performance in high-heat, high-pressure conditions
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Essential for Restoring Heater Function: Replaces worn or damaged bypass assemblies to ensure consistent heat transfer and optimal system function
- (1) Bypass
- (1) O-Ring
- (1) Locking Nut
- Jandy LXI Heater Models: LXI250N, LXI250NN, LXI400N, LXI400NN, LXI250NC, LXI250NS, LXI400NC, LXI400NS Natural and LXI250P, LXI250PN, LXI400P, LXI400PN, LXI250PC, LXI250PS, LXI400PC, LXI400PS

